Adding & Subtracting with Standard Algorithm (Marshall)©

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This lesson primarily focuses on 4.NBT.B.4 - fluently adding and subtracting multi-digit numbers using the standard algorithm.  The lesson connects to and builds on students' understanding of place value and the base-ten number system (4.NBT.A.1).  Students use a step-by-step process to add and subtract multi-digit numbers, as modeled by the teacher.  Students then work through word problems that require use of the standard algorithm, first with partners and then independently.

The video is annotated using the Instructional Practice Guide: Coaching Tool.


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